# A211475 (b-file synthesized from sequence entry)
1 1
2 2
3 7
4 27
5 121
6 587
7 2983
8 15744
9 85375
10 473259
11 2670383
12 15293119
13 88686530
14 519864702
15 3075894246
16 18348407371
17 110244289384
18 666651567920
19 4054481396896
20 24786629709850
21 152241407914480
22 939069024577371
23 5815027475345028
24 36137289604644570